我有我的 Node.js 应用程序,并且我也在使用 Express.js 框架。目录结构如下:
myapp
+-- node_modules
+-- public
+-- routes
|-- index.js
|-- mynewpage.js
+-- views
|-- index.ejs
|-- mynewpage.ejs
|-- app.js
|-- package.json
app.js
文件是这样的:
2 /**
3 * Module dependencies.
4 */
5
6 var express = require('express')
7 , routes = require('./routes')
9 , http = require('http')
10 , path = require('path');
11
12 var app = express();
13
14 // all environments
15 app.set('port', process.env.PORT || 3000);
16 app.set('views', __dirname + '/views');
17 app.set('view engine', 'ejs');
18 app.use(express.favicon());
19 app.use(express.logger('dev'));
20 app.use(express.bodyParser());
21 app.use(express.methodOverride());
22 app.use(express.cookieParser('your secret here'));
23 app.use(express.session());
24 app.use(app.router);
25 app.use(require('less-middleware')({ src: __dirname + '/public' }));
26 app.use(express.static(path.join(__dirname, 'public')));
27
28 // development only
29 if ('development' == app.get('env')) {
30 app.use(express.errorHandler());
31 }
32
33 app.get('/', routes.index);
35 app.get('/mynewpage', routes.mynewpage); /* THIS LINE */
36
37 http.createServer(app).listen(app.get('port'), function(){
38 console.log('Express server listening on port ' + app.get('port'));
39 });
文件mynewpage.js
如下:
exports.mynewpage = function(req, res){
res.render('mynewpage', { title: 'Hello' }, function(err, html) {});
};
当我尝试:node app.js
使用我标记为未注释的行时,我收到此错误:
/home/myuser/www/app-www/node_modules/express/lib/router/index.js:252 throw new Error(msg); ^ 错误:.get() 需要回调函数,但在 Array.forEach 的 /home/myuser/www/app-www/node_modules/express/lib/router/index.js:252:11 处获得了 [object Undefined](本机) 在Router.route (/home/myuser/www/app-www/node_modules/express/lib/router/index.js:248:13) 在Router.(匿名函数) [as get] (/home/myuser/ www/app-www/node_modules/express/lib/router/index.js:270:16) 在 Function.app.(匿名函数) [as get] (/home/myuser/www/app-www/node_modules/express /lib/application.js:413:26) 在对象。(/home/myuser/www/app-www/app.js:35:5) 在 Module._compile (module.js:456:26) 在 Object.Module._extensions..js (module.js:474:10 ) 在 Module.load (module.js:356:32) 在 Function.
如果我取消注释该行,一切顺利。有什么问题?谢谢